Single-Line Error Summarization Protocol

Overview

When reporting a test failure or build error back to the user or across multi-agent boundaries, default agents dump the complete 80-to-120 line raw terminal traceback into the chat transcript.

Uncondensed stack traces:

1. Pollute Context Memory: 80 lines of V8/CPython internal runtime frames consume 1,200+ tokens per failure turn.
2. Obscure Root Cause: The human developer must scroll through pages of boilerplate middleware frames to find the single line of user code that broke.
3. Induce Token Waste in Follow-Up Turns: Subsequent turns re-send the entire verbose error log.

The Single-Line Error Summarization Protocol parses tracebacks down to a standardized 1-Line Root Cause Token: 🚨 [FAIL: path/to/file:line] ErrorType: Root Cause Message.

100-Line Raw Traceback vs. Single-Line Error Summary